Definition of be or go on the lash in English:

be (or go) on the lash

  • British informal Be engaged in (or go on) a heavy drinking session.
    More example sentences
    • Too many estate agents on the lash, getting their photos taken for the social page.
    • It can only be a matter of time he goes on the lash with Hitchens.
    • It'll be some local youngster who's parents have given the money to have a good night on the lash.
See parent entry: lash

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody